Home / 4,749.82-7,124.73-1,239.81

Finding the Fourth Proportional to 4,749.82, 7,124.73 and 1,239.81

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Solution

The fourth proportional to 4,749.82, 7,124.73 and 1,239.81 is: 1,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.82 : 7,124.73 = 1,239.81 : x
  2. Step 2: Convert to fraction form
    4,749.82/7,124.73 = 1,239.81/x
  3. Step 3: Cross multiply
    4,749.82x = 7,124.73 × 1,239.81
  4. Step 4: Simplify right side
    4,749.82x = 8,833,330.23
  5. Step 5: Solve for x
    x = 8,833,330.23/4,749.82
  6. Step 6: Final answer
    x = 1,859.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.